The description makes this sound like godawful smut.
Which... okay, isn't wrong per se, but totally misses out on how goddamn hilarious, fun, touching, full of gleeful stupidity this all is. The characters are magnificent. The comedy is superb.
And to top it off, it's ultimately all quite genuinely heartwarming in the end. Really, I would highly recommend this to anyone who isn't just put off by the fact that it's filthy yaoi in the first place.